• Carboniferous of United States (4: Arizona, California, Montana collections)

• Givetian of France (8), the Russian Federation (1), United States (1: Missouri)

• Devonian to Carboniferous of the United Kingdom (1)

• Devonian of Afghanistan (2), Argentina (1), Australia (7), Belarus (2), Belgium (5), Canada (76: British Columbia, Northwest Territories, Nunavut, Ontario, Quebec, Yukon, Yukon Territory), China (4), the Czech Republic (12), France (29), Germany (14), Libya (1), Mongolia (1), Morocco (1), Myanmar (2), Poland (15), the Russian Federation (5), Spain (5), Ukraine (5), United States (254: Alaska, Arizona, Colorado, Indiana, Iowa, Maine, Maryland, Michigan, Missouri, Montana, Nevada, New Mexico, New York, Ohio, Pennsylvania, West Virginia, Wisconsin)

• Whitwellian of Canada (4: Northwest Territories)

• Jaani of Estonia (4), Lithuania (2)

• Silurian of Argentina (3), Australia (9), Belarus (3), Canada (135: Manitoba, New Brunswick, Northwest Territories, Nova Scotia, Nunavut, Ontario, Quebec, Yukon, Yukon Territory), China (26), the Czech Republic (10), Estonia (45), Iran (1), Ireland (1), Kazakhstan (2), Latvia (2), Lithuania (17), Mexico (6), Norway (11), Poland (1), the Russian Federation (18), Spain (1), Sweden (27), Ukraine (8), the United Kingdom (64), United States (97: California, Indiana, Iowa, Missouri, Nevada, New York, Oklahoma, Tennessee, Virginia, Wisconsin), Venezuela (3)

• Whiterockian of United States (1: Nevada)

• Ordovician of Argentina (1), Belgium (2), Canada (41: Quebec), China (21), the Czech Republic (4), Estonia (4), Kazakhstan (8), Latvia (2), Lithuania (1), Myanmar (1), Norway (3), the Russian Federation (1), Sweden (11), Turkey (1), the United Kingdom (18), United States (3: Missouri)

Total: 1079 collections including 1152 occurrences